SKU: 31550762636

Fitbit Flex Wireless Wristband with Sleep Function, Black

Sale price$71.99 Regular price$79.99
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

Fitbit Flex Wireless Wristband with Sleep Function, BlackColor: Slate Size: Two wristbands included, Large (6. 5 7. 9 in) and Small (5. 5 6. 5 in) Product Description Fitbit FB401SL Flex Wireless Activity and Sleep Tracker Wristband From the Manufacturer Certain features like Auto Sleep Tracking and SmartTrack may be disabled when using this accessory. Classic accessory bands are the recommended accessory for high intensity workouts and sleep tracking. Do not wear the Flex 2 Pendant accessory while sleeping

Color:Slate |  Size:Two wristbands included, Large (6.5 - 7.9 in) and Small (5.5 - 6.5 in)

Product Description

Fitbit FB401SL Flex Wireless Activity and Sleep Tracker Wristband

From the Manufacturer

• Certain features like Auto Sleep Tracking and SmartTrack may be disabled when using this accessory. Classic accessory bands are the recommended accessory for high intensity workouts and sleep tracking. • Do not wear the Flex 2 Pendant accessory while sleeping or during high intensity activity, as doing so could create a choking hazard. • Flex 2 Pendant accessories contain magnets. Magnets may interfere with pacemakers, defibrillators, or other medical devices. Consult your physician and the manufacturer of your medical device before using to determine if these accessories are safe for you. If the accessories may be interfering with your pacemaker, defibrillator, or other medical device, do not wear the accessories.

See all Product description
  • One syncs automatically and wirelessly to tablets, computers and 150+ leading iOS, Android and Windows smartphones using Bluetooth 4.0 wireless technology. Syncing to computers requires Internet connection and USB port. Syncing to mobile devices requires Bluetooth and Internet connection. Syncing range: 20 feet. Call notifications via Bluetooth 4.0
  • Water Resistance: Charge has been tested up to 1 ATM meaning it is sweat, rain and splash proof. However, the device is not swim proof. We also recommend taking Charge off before showering because, as with any wearable device, it’s best for your skin if the band stays dry and clean
  • Warning: Do not use if you have a pacemaker or other internal, or implanted medical device. Not intended for use by children under 13. Always consult your physician. Slippery when wet
  • We recommend charging your device every few days to ensure you are always tracking. Charge time: One to two hours. Battery life: up to 7 - 10 days. Battery type: Lithium-polymer
  • Syncs with Windows Vista and later, Mac OS X 10.6 and up, iPhone 4S and later, iPad 3 gen. and later, and leading Android and Windows devices
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 31550762636

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4.3 ★★★★★
Based on 10 reviews
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camping roots
Fort Morgan, US
★★★★★ 5
Super comfy and pretty
Color: Black, Size: X-Large
Fit is nice and comfortable!!! Soft in the inside as well! It’s not huge but also doesn’t stick to me. You can literally wear it down (casual with jeans or shorts) or dress up (like I did for Mother’s Day with a nice skirt and jacket) Seems breathable enough for our California heat
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
B
Verified Purchase
Blondie
Lexington, US
★★★★★ 5
Great quality and affordably priced
Color: Coral, Size: X-Large
I live in a very hot, humid climate and despise clingy clothes. This shirt looks great, feels great, and washes beautifully (I used cold water and hung to dry). Although light weight, it is not see-through. I was so happy with the coral color, I also purchased two more in black and white a few days later.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
A
Verified Purchase
Amazon Customer
Battle Creek, US
★★★★★ 5
Feels soft!
Color: Black, Size: 4X-Large
The fabric is great, as is the weight, fit, color. It covers the backside and doesn’t bulge around the hip. Would love to see it in several colors!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
M
Verified Purchase
Mary C
New York, US
★★★★★ 5
Really great quality and fit for the price
Color: Navy Blue, Size: Large
These tank tops are beautifully cut, the colors are great, the fabric is stretchy and comfortable and they don’t look at all cheap. A very welcome surprise that they exceeded expectations. I spend the entire summer in slim fit tanks and A-line skirts with a jean jacket or shirt over and ended up buying practically every color because I like them so much - can pair them with much more high end items and they don’t look out of place.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
D
Verified Purchase
Deanna Wright
Fort Morgan, US
★★★★★ 5
Super soft, nice material and you'll want a few of these!
Color: Black, Size: Medium
I’ve been really happy with this ANRABESS ribbed V-neck tank overall. It fits snug, and the material is soft, stretchy, and lightweight, which makes it perfect for warmer weather or layering it. The ribbed texture and V-neck give it a slightly more polished look than a basic tank, so it’s easy to dress up or keep casual with jeans or shorts. I’ve found it to be comfortable for all-day wear, and it holds its shape well after washing. I really like the wider shoulder material which covers my bra strap well. Fit-wise, it runs pretty true to size, although I could see sizing up if someone prefers a less fitted look. One thing to note is that lighter colors may be a bit more sheer depending on what you wear underneath. Overall, it’s a simple, versatile tank that didn't break my bank so it's worth it. In the winter I'll probably wear it under the majority of my shirts. I'm absolutely planning on ordering more colors.
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Reviewed in the United States on April 30, 2026

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